What is CVE-2023-47539?

CVE-2023-47539 is a critical-severity vulnerability in Fortinet Fortimail, classified under Improper Access Control. CVSS score: 9.0/10. Published 2025-03-18.

How severe is CVE-2023-47539?

Critical severity. CVSS v3 base score is 9.0 out of 10.

Vulnerability in Fortinet Fortimail

CVE-2023-47539

An improper access control vulnerability in FortiMail version 7.4.0 configured with RADIUS authentication and remote_wildcard enabled may allow a remote unauthenticated attacker to bypass admin login via a crafted HTTP request.

EPSS: 0.001 (31.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:X/RC:X.

Affected products

Fortinet Fortimail — versions 7.4.0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

https://fortiguard.com/psirt/FG-IR-23-439

Frequently asked questions

What is CVE-2023-47539?: CVE-2023-47539 is a critical-severity vulnerability in Fortinet Fortimail, classified under Improper Access Control. CVSS score: 9.0/10. Published 2025-03-18.
How severe is CVE-2023-47539?: Critical severity. CVSS v3 base score is 9.0 out of 10.